Prenatal test for trisomies
"In addition to determining trisomy 21, known as Down syndrome, this absolutely non-invasive examination can also identify trisomy 18 (Edwads syndrome) and trisomy 13 (Patau syndrome): very serious chromosomal abnormalities that can compromise not only some important functions in the unborn child, but even its survival within the first months of life ", explained Dr. Giuditta Filippini, director of ProCreaLab, who is keen to underline that:" The test has a predictive capacity greater than 95% and resets the risks of abortion ".
Who is it recommended to? To all, but in particular to women who are no longer very young, as it is known that the onset of chromosomal numerical anomalies is directly proportional to the age of the future mother.
What does the Preanatest consist of? In a maternal blood sample containing a fraction of fetal genetic material (DNA) due to cell turnover in the placenta.
See also
When is it done? After the 11th week of pregnancy.
However, Dr. Filippini recommends one thing: “It should also be kept in mind that this type of test cannot diagnose some rare forms of trisomy and is not indicated in the case of a twin pregnancy. Furthermore, in front of a positive result of trisomy 21, 18 or 13, the patient is directed to an invasive examination. The decision to use this test and its result should be discussed with the doctor ”.
See also:
- The pregnancy calendar
- Amniocentesis, when and why to do it?
- Popsicles against nausea
- Pregnancy: the myths about nutrition to dispel
